Abstract: Nuclear Quadrupole Resonance Spectroscopy has become a standard method for structural research in molecular and solid state physics as well as for different branches of chemistry. The volumes cover data for more than 8,000 substances in the solid state. Data for free molecules have been published in volumes II/14 and II/15 of the New Series. The tables are arranged according to the atomic number of the elements.

RefComment: Written for scientists and researchers in the fields of physics and chemistry

Abstract: The magnetic properties of halides have been compiled in subvolume 27J. The third part, 27J3, contains data on structural and magnetic properties of halide perovskite-type layer structures of the types A2MX4 (monolayer compounds), A3M2X7 (double-layer) and A4M3X10 (triple-layer) where X=F-, Cl-, etc.; M=Mg2+, Cr2+, Mn2+, Zn2+, Cd2+, etc.; and A=K+, Rb+, Cs+, etc. In addition, for X=Cl- and Br- data are presented on compounds where the alkali ions are replaced by n-alkylammonium chains, and also for diammonium compounds where two alkali ions are replaced by divalent alkylene-diammonium ions. A brief sketch of the theory of phase transitions and of the relevant models (2D Ising model, 2D XY-model, 2D Ising spin glass) is also given as well as a comprehensive selection of data on critical properties near the phase transitions.

Abstract: This new volume of Landolt-Börnstein consits of two subvolumes. A on Diffusion in Semiconductors and B on Diffusion in Non-Metallic Solides. This separation was necessary, because the field and the number of data is too large to be compressed into a single volume only. This separation - we hope - also reflects the expected difference in the interets of potential users.

Abstract: Considered are magnetic, crystallographic, electric, optical, thermodynamic and further properties; while the magnetic, crystallographic and directly related data are compiled completely, the other properties are treated according to their importance. For a continuation and extension see below volume III/27

Abstract: Volume III/7 contains structure data on those compounds which contain at least one of the elements F, Cl, Br, I, O, N, and P and cannot be called "organic". The structure data of the remaining inorganic compounds and the elements are dealt with in volumes III/6 and III/14, while the organic compounds are treated in volumes III/5 and III/10. The systematic arrange-ment is based on the anions ordered according to "key elements", since this system allows the arrangement of the crystal structure data in such a way that both chemical and crystallographical relationships can be recognized. Structure data are compiled as completely as possible for all inorganic substances, where crystal structures have been examined by means of X-ray, neutron, and electron diffraction,and for which at least the lattice constants have been determined.